New Madrid Earthquake - Wikipedia
Article about the 1812 New Madrid Earthquake, one of the largest earthquakes ever recorded in the contiguous United States.
USGS: New Madrid 1811-1812
Describes the series of earthquakes that shook the area around New Madrid, MO, between December 16, 1811 and February 7, 1812.
The Great New Madrid Earthquake
Article about the 1811 and 1812 earthquakes on the New Madrid Fault, halfway between St. Louis and Memphis beneath the Mississippi. Includes eyewitness accounts, current seismic work, maps, and more.
New Madrid Compendium, The
Features newspaper articles, scientific articles, folklore, maps, and eyewitness accounts related to the New Madrid earthquakes of 1811-1812.